Question

Need help on rectangular distribution

A random variable, X, has the pdf:
f(x) = 0.05, 0 12 years ago

Answer 1

\[0 \le x \le 20\]

Answer 2

instead of 0 < x < 20

Answer 3

< or \(\le\)...it doesn't matter

Answer 4

I've drawn the rectangular distribution graph but got the answer to the first one wrong

Answer 5

what did you get for an answer?

Answer 6

Sorry, I meant I got the second one wrong

Answer 7

Just realized I got the first one right

Answer 8

if you can do (a) you should be able to do (b)

Answer 9

I got 0.61 for some reason for b

Answer 10

and how did you get that?

Answer 11

20-7.8/20-0

Answer 12

7.8/20

Answer 13

Oh is it 7.8-0/20-0?

Answer 14

you should use parentheses

Answer 15

For what?

Answer 16

So like (7.8-0)/(20-0)?

Answer 17

7.8-0/20-0=7.8-0-0=7.8

(7.8-0)/(20-0)=\(\dfrac{7.8}{20}=.39\)

Answer 18

I see, so how do I go about doing the 3c?

Answer 19

\[P(a<x<b)=\frac{b-a}{20}\]

for \(0\le a,b\le 20\)

Answer 20

Thanks

Answer 21

I got it right

Answer 22

good